package com.lijj.gulimall.product.service.impl;

import com.lijj.common.to.SkuReductionTo;
import com.lijj.common.to.SpuBoundTo;
import com.lijj.common.utils.R;
import com.lijj.gulimall.product.entity.*;
import com.lijj.gulimall.product.feign.CouponFeignService;
import com.lijj.gulimall.product.service.*;
import com.lijj.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lijj.common.utils.PageUtils;
import com.lijj.common.utils.Query;

import com.lijj.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService descService;

    @Autowired
    private SpuImagesService imagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService attrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    private CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * todo 高级部分完善：分布式事务
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1. 保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2. 保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        descService.saveSpuInfoDesc(descEntity);

        //3. 保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(), images);

        //4. 保存spu的规格参数;pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        //5. 保存spu的积分信息：gulimall_sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if(r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        //5. 保存当前spu对应的所有sku信息:
        List<Skus> skus = vo.getSkus();
        if(skus != null && skus.size() > 0)
        skus.forEach(item -> {
            String defaultImg = "";
            for (Images image : item.getImages()) {
                if(image.getDefaultImg() == 1) {
                    defaultImg = image.getImgUrl();
                }
            }
//            private String skuName;
//            private BigDecimal price;
//            private String skuTitle;
//            private String skuSubtitle;
            SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
            BeanUtils.copyProperties(item, skuInfoEntity);
            skuInfoEntity.setBrandId(infoEntity.getBrandId());
            skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
            skuInfoEntity.setSaleCount(0L);
            skuInfoEntity.setSpuId(infoEntity.getId());
            skuInfoEntity.setSkuDefaultImg(defaultImg);
            //5.1）sku的基本信息：pms_sku_info
            skuInfoService.saveSkuInfo(skuInfoEntity);

            Long skuId = skuInfoEntity.getSkuId();

            List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                skuImagesEntity.setSkuId(skuId);
                skuImagesEntity.setImgUrl(img.getImgUrl());
                skuImagesEntity.setDefaultImg(img.getDefaultImg());
                return skuImagesEntity;
            }).filter(entity -> {
                //返回true就是需要，false就是剔除
                return !StringUtils.isEmpty(entity.getImgUrl());
            }).collect(Collectors.toList());
            //5.2）sku的图片信息：pms_sku_images
            //todo 没有图片；路径无需保存

            skuImagesService.saveBatch(imagesEntities);

            List<Attr> attr = item.getAttr();
            List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                BeanUtils.copyProperties(a, attrValueEntity);
                attrValueEntity.setSkuId(skuId);

                return attrValueEntity;
            }).collect(Collectors.toList());
            //5.3）sku的销售属性信息：pms_sku_attr_value
            skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

            //5.4）sku的优惠、满减等信息：gumail_sms -> sms_sku_ladder\sms_sku_full_reduction\sms_member_price\,跨库操作
            SkuReductionTo skuReductionTo = new SkuReductionTo();
            BeanUtils.copyProperties(item, skuReductionTo);
            skuReductionTo.setSkuId(skuId);
            if(skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {

            }
            R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
            if(r1.getCode() != 0) {
                log.error("远程保存sku优惠信息失败");
            }
        });

    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        /**
         * status
         * key
         * brandId
         * catelogId
         */

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("id",key).or().like("spu_name", key);
            });
        }

        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)) {
            wrapper.eq("public_status", status);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catelog_id", catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }
}